The Dark Yin Seal: Release is a powerful sealing technique designed and created by Seiji Kuragari. Similar to Tsunade's Yin Seal, over a period of time, the large amounts of excess chakra he's consumed will been focused into a seal mark on the back of his right hand. On the release command, the seal will disperse and the stored charka will pump freely back into his body. Because of the immense mass of chakra stored in the seal, having it all pump back into his body would overwhelm him. Due to this, only small portions of chakra will pump into his body once the seal is broken. Only when the seal is re-formed will the chakra cease to pump into his body.